Aluminum electrolysis cell production process control method

Abstract

The invention belongs to the technical field of aluminum electrolysis production, and particularly relates to an aluminum electrolysis cell production process control method. The invention mainly solves such problems as different thoughts on the electrolysis cell process control aspect in domestic aluminum electrolysis industry, greater control effect differences of all enterprises, short life ofelectrolysis cells and weak economical index. The control method divides normal production period of the electrolysis cells into eight time periods according to the cell life, adjusts the voltage level, and controls the electrolyte level, the aluminum level, the molecular ratio level and the cell temperature.

Description

technical field [0001] The invention belongs to the technical field of aluminum electrolytic production, and in particular relates to a method for controlling the production process of an aluminum electrolytic cell. Background technique [0002] At present, the domestic electrolytic aluminum industry is not unified in the process control of electrolytic cells, and the control effects of various enterprises are quite different, resulting in short life of electrolytic cells and poor economic indicators. At present, the furnace bottom of the electrolytic cell adopting the idea of ​​high aluminum level control tends to be cold, the bottom of the furnace deposits increase, and the outstretched legs are hypertrophic, causing problems such as early damage to the cathode and side furnace leakage before the service life of the electrolytic cell, and the economic index drops significantly; The electrolyzer with the idea of ​​voltage control tends to be colder, the work intensity is hi...

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Problems solved by technology

The adverse results caused by the above process control ideas basically violate the operation rules of the electrolytic cell

Drawing lessons from various technical control routes in the same industry, in order to avoid adverse consequences caused by improper technical routes, based on the design requirements of the electrolytic cell and years of work experience, we believe that the harm of maintaining a high aluminum level in the electrolytic cell is quite fatal, and the low voltage of the electrolytic cell The operation will inevitably reduce the heat income. In order to maintain the heat balance, it is necessary to strengthen the insulation management of the electrolytic cell, which will cause the deformation of the anode steel claws, shorten the service life of the steel claws, and increase the labor intensity of the workers.

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